All three Winter Olympic villages in Beijing, Yanqing and Zhangjiakou were open on Thursday, welcoming Games participants from all over the world.

The internal design of apartment buildings has met the globally recognized WELL Building Standard, paying extra attention to residents' health through careful management of air quality, water, lighting and space.

There are 139 pieces of fitness equipment of 27 different types at the Yanqing Olympic and Paralympic Village, helping athletes maintain peak physical condition during the Games.

A menu of 678 dishes will be provided, and around 200 will be available each day in the three villages.

Video editor: Wang Shuqing

Supervisor: Guan Xiaomeng

Music: AGM